Trailer Coupler Latch Lock for UFP and Surge Brake Couplers

The Master Lock 3.5" Long Shackle Barbell Lock is designed to provide improved wear and corrosion resistance, thanks to its chrome plated finish. Manufactured from solid brass, this lock is built to last. It fits standard coupler latches and features a water-tight cap to protect the lock mechanism.

Featuring a 4-pin tumbler mechanism, this lock is resistant to picking attempts. The Master Lock is precision engineered to a 1/4 inch diameter, with a tolerance of +/- 0.05 inches. This lock effectively protects against tow-away theft, whether the trailer is connected to the tow vehicle or unattached.

By preventing the coupler latch from moving, the Master Lock ensures the coupler cannot be removed from the ball or a new ball inserted into the coupler. This lock is compatible with both UFP and surge brake couplers, and utilizes a K1 key blank.

The pin length or dimensional fit of this lock is 3-1/2" wide, with a 9/32" diameter pin - a standard size that fits virtually all couplers. The chrome plating enhances the lock's wear and corrosion resistance characteristics.

The precision 4-pin tumbler mechanism of the Master Lock provides reliable pick resistance, while the weather-tough seal and water-tight cap protect the lock from the elements. This combination of features makes the Master Lock an effective solution for securing trailers and guarding against theft.

In summary, the Master Lock 3.5" Long Shackle Barbell Lock is a durable, corrosion-resistant, and pick-resistant locking solution designed to safeguard trailers and prevent tow-away theft. Its universal fit, chrome plating, and weather-proof construction make it a reliable choice for trailer owners seeking a secure and dependable locking mechanism.

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